Bed-spring.



No. 67!,233. Patented Apr. 2, I901.

D. J'.. POWERS.

BED SPRING.

(Application flied Aug. 17, I9 00.) {No Model.)

TNE NORRIS PETERS co. PHDYO-LVTNEL, WASHINGTON. u. c,

Umrn STATES I PATENT @FFIC DAVID J. POWERS, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE UNION WIRE MATTRESS COMPANY, .OF SAME PLACE.

BED-SPRING;

SPECIFICATION forming part of Letters Patent No. 671,233, dated April 2, 1901 Application filed August 17, 1900. Serial No. 27,170. ill'o model.)

To all whom 126 may concern.-

Be it known that I, DAVID J. POWERS, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Bed-Springsof which the following is a specification.

This invention relates to improvements in bed or mattress springs, and refers more specifically to an improved construction in the underlying supporting-frame upon which the springs are mounted, embracing as its most salient feature a novel and improved con,- struction in the means whereby the springs are attached to said frame and the frame members made rigid with each other.

The object of the invention is to provide a simplified and improved construction of the character referred to; and the invention consists in the matters hereinafter described, and more particularly pointed out in the appended claim.

The invention Will be more readily understood by reference to the accompanying drawings, in conjunction with the description, Wherein- Figure l is a top plan View of a portion of a bed-spring embodying my invention, and Fig. 2 is a vertical sectional view taken on line 2 2 of Fig. l.

Referring to said drawings, 1 designates an outer marginal frame, which may be of any suitable construction, as shown herein being formed of strap-iron arranged with its plane vertical, as shown. I

- 2 2 designate the several members of a series of supporting cross bars or strips, formed of strap-iron, the main intermediate portions of which are disposed with their planes vertical, while the end portions 3, whereby they are attached to the marginal frame members 1, are desirably each provided with a quarterturn twist extended vertically upward adjacent to the side of the approximate frame member and riveted thereto, as indicated at 4, the extreme end portions being .turned horizontally outward to form supports 5,

whereby the bed-spring as a whole is supported upon the bedstead. It is to be understood that the particular construction Whereby the supporting bars or strips 2 are united with the marginal frame is immaterial so far as the invention is concerned, the present construction being desirable, however, for the reason that it is not only cheap and reliable, but also serves to support the main body of the cross-strip somewhat below the level of the marginal frame, so that the latter in part surrounds or incloses the set of springs and at the same timereduces the height to which the upper surface of the set of springs extends above the point of supporting attachment with the bedstead. The several supporting-strips 2 of the series are desirablyarranged parallel with each other and at a distance apart corresponding to the distance at which it is desired to arrange the several springs.

6 ti designate the several members of a series of stay-strips arranged to extend transversely to the series of supporting crossstrips 2, said stay-strips being also constructed of strap-iron, but arranged with their planes horizontally. The strips 6 6 are also connected at their ends with the marginal frame 1 in any suitable manner, in the pres ent instance by being looped around the latter, as indicated at 7, and are arranged parallel with each other and at a distance apart equal to the distance between the several coilsof the bed-spring. These stay-strips 6 are so disposed that their main intermediate portions occupy a plane located intermediate of the upper and lower margins of the supporting cross-strips, and at each point of intersection with said supporting-strips said stay-strips are provided with upwardly-bent fiat loops or bends 9, which embrace the upper margins ofthe respective supportingstrips, the length or depth of these loops being equal to the distance at which the main body of'the stay-strip is locatedbelow the upper edge of the supporting cross-strips, so

that the upper end of each loop rests in direct bearing with the upper. margin of the cross-strip it engages.

10 10 designate the severalcoil-springs of the series, these being of the usual cone-shaped construction, so far as their general shape is concerned. In order to secure the lower end of each of said coil-springs 10 to the supporting-frame, constructed as described, in such manneras to not only form a reliable LOO means of attaching the coil to the frame, but at the same time to lock or bend the supporting and stay strips positively together, I adopt a peculiar interlocked construction, which is arranged as follows: The several springs 10 are so located that their several vertical axes substantially coincide with the points of intersection of the supporting and aperture, as l2 13, which are located in a horizontal plane substantially coincident with the upper surface of the main body of the stay-strip, so that the engagement of the coil 11 of the spring therewith in the manner described serves to positively lock the stay-strip and the cross supporting-strip to each other. The upper ends of the several springs are suitably connected with any preferred floating frame or network, that shown herein comprising a marginal frame 14, to which is attached a network or skeleton wire frame composed of a plurality of parallel bars or wires 15, united with each other and the subjacent springs by means of interlocking cross-bars 16, arranged in a well-understood manner, as shown clearly in the drawings. It is to be noted, however, that the connection of the upper ends of the several coil-springs with the floating frame will be such as to prevent said springs from rotating upon their vertical axes, thereby preventing the disengagement of their lower coils from the underlying support-ingframe.

It will be understood from the foregoing description that a construction embodying my invention is extremely simple and economical to manufacture, all special securing devices of whatsoever nature for uniting supporting-frame members with each other and the several springs to the supportingframe being entirely dispensed with and these parts securely united by the simple expedient of interlocking the lower end of the spring itself with said members in the manner described. At the same time a supporting-frame constructed as described is extremely strong and rigid. The parts thereof are so interlocked as to prevent one contacting part from moving upon another, thereby avoiding creaking, and the peculiar arrangement of the stay-strips affords a broad and level supporting-surface upon which the lower end of the active part of the spring is supported. The structure is also one which may be readily dismantled or separated either for the purpose of replacing or repairing the springs.

I claim as my invention In a bed-spring, the combination of a series of .flat supporting-bars, arranged with their planes vertical, a series of transverse intersecting metal stays, each provided at its points of intersection with the supportingbars with a loop arranged to overlie and rest upon the upper edge of the supporting-bar, said supporting-bars having a series of apertures formed therethrough in a plane substantially coincident with the upper surface of the main body of the stay memberat each side of the loop thereof, and a series of coiled springs, each connected with said support ing-frame by having its lowermost turn or coil passed through said apertures and arranged to rest upon said upper surface of the stay-bar whereby the supporting-bar and stay member are locked in fixed relation with each other and the spring is thus united with the supporting members, substantially as described.

DAVID J. POWERS.

Witnesses:

ALBERT H. GRAVES, FREDERICK O. Goonwm. 

